crnk case oil into fuel tank????

[JohnEd]

http://www.cummins-sp.com/engines/parts_accessories/centinel_system.htm

Cummins has system that injects crank case oil into the fuel tank and replenishes the oil from a reservoir.  Reduces maint and resolves the hazardous waste disposal issue.  Neat huh?

I feel vindicated as some here said I was nuts and ate dogie poopy and barked at the moon.  That was a far more PC insult than calling me a "moron" or "idiot".  I will never understand these people.

Any way Mary Jane...there you have it.

John

[happycamperbrat]

I have read stories from many people online who swear they burn used motor oil with no bad effects in their diesels. When I am running low on projects, I intend on doing more research into this.

[JohnEd]

Save your time.  It only really applies to MUI or mechanical injected engines if you want to go to 10%.  If you get any significant mix in an electronic engine you increase the viscosity of the fuel and break the fuel pump.  Different engines and different fuel pumps and different model fuel pumps affect the story.  But each teller seems certain their experience is universal.  Want to do something nice for the planet?  Burn your hazardous waste.  Each gallon is worth exactly how much money to you in terms of fuel savings?

I will settle and filter mine and make sure of the acidity.  I don't think anthing else matters but I will check.

You might also look into adding waste veggie oil to the D.  Summer only.

I'll get back to you with the sites I visit.

John

[happycamperbrat]

My engine IS mechanical injected! I have a 6v92 specifically chosen for ease of alternative fuels. Im interested in the sites you visit, that way I will know someone there 

[Brassman]

That would work well, as (I assume) it meters a small amount at any one time to the fuel tank. It does increase the cost of the fuel, though. I suppose it saves money on waste oil disposal and oil change (labor) costs.

[TomC]

This system cannot be used on the new engines with catalytic converter, diesel particulate filter, and Diesel Engine Fluid (Urea) reaction chamber, since the oil would muck up the cleanliness of the smog control system.  But-on good old mechanically operated engines-go for it! Good Luck, TomC

[JohnEd]

Brassman,

Without delving into the specifics, I agree that that system is metering very small amts of oil into the fuel tank.   Even at that, if you add ten gallons of oil you will get some benefit from it as fuel.  I think oil only has the energy of 80% of D so it isn't an across the board savings.  With the attitude of the current crop of bean counters we have out there today I can well imagine that a gallon per week per truck savings in fuel costs alone would turn their head.  For us though what is a ten percent savings worth in dollars spent per year?  It varies, I know, but it is answered by each in accord with..... For me I like the disposal angle and would do it for that reason alone IF,and I mean IF I wasn't damaging my engine in any way.

And the big question is "if that was such a good idea, why haven'twe seen all the other mfrs jumping on that band wagon?  I'm not sure even Cummins still uses it.

John

[JohnEd]

And Tom answered the "BIG" question.

Thanks Tom

John

[Brassman]

Yeah, it seems to be for industrial use.

[belfert]

Cummins says this is for on-highway and off-highway applications applications.  I assume it works with electronic engines as it says it meets EPA tier 2 specs.

The amount of oil burned is miniscule in the grand scheme of things.  Think about it.  It might burn 10 gallons of oil in 15,000 miles while burning around 2,000 gallons of diesel.  You end up with 99.5% diesel and .5% oil.  This isn't the same as pouring 10 gallons of oil into a 150 or 200 gallon tank.

For a fleet this might make sense since labor is expensive.  For the DIY crowd like busnuts it would never make sense.  Presumably you're still using the same amount of oil so that is still a cost, but not really sure on that.

[junkman42]

John ed, I wanted to comment on the why do they not use it if it works.  In WW2 aircraft engines started using  PRT'S not all engines not all manufactures!  I have always wondered because I used to sit behind some of those engines that had PRT'S.  Why wouldn't it work on My car?  Funny enough the latest Detroit's have a PRT or a power recovery turbine which is nothing more than a exhaust driven turbine which uses a gear box to deliver the power recovered back to the crankshaft for free!  The point being just because it is not universally used the reason may be just bean counter stupidity or if They do not ask for it why spend money on it!  Off thread a little sorry!  John L

[JohnEd]

John L,

I thought you were right on the topic.  Great info on the Power  Recovery Turbo.  Just GREAT.

Thanks,

John

[cody]

doggie poopie? lol

[JohnEd]

HCB,

Here is your newest site.  These guys ONLY entertain "blending of WVO and WMO to make a viable fuel for Ds.

If you read a little into the forum you will learn that this is a trial and error type group.  On member is diluting WMO with PG (pump gasoline) on a 50% ratio.  It worked fine for 50 miles and then he had to replace the injectors.  The new injectors only lasted 250 miles before he had to remove them and clean them. Obviously this man isn't running a 8V92.  I didn't catch what he was using for a test motor but it was auto.  He mentions that after mixing the PG he got a lot of sludge fall out of suspension.  To me that means he has a lot of water in the oil that he should remove first or at least remove.  The site is rife with anecdotal "evidence" and there is still a cadre of users.  Interesting for sure.

There is a statement at the home page that states that 80 20 mix of WVO and PG is a 12 month fuel in temps down to 12 degrees F.  No ifs ands or buts.  And I think they are correct for the old mechanicals.  The fly in the ointment is this:  we all know what PG is and where to get it.  WMO is a deceptive name.  It can be almost anything in the oil spectrum and have acidic levels to scare a lemon.  The WVO has to be carefully treated and cleaned and that is the real thorny issue.  The guys that just throw it together have extremely good/pure oil sources.

Have fun Pilgrim.  I'll get you another.  "Jeremiah Johnson"

John

MODIFY:

HCB and others:

The link I attached didn't take or last, one.  The Fuel Blenders are a group on "Yaho Groups".  Search that forum for WVO andWMO and Bio diesel.  There are a few there and they are good.  Also check out "Journey to Forever".   Google  "BioDiesel" for an armload of forums and sources fr supplies.  Get comfy when you do this as it will ake you a week to read it all and it is very interesting.

[JohnEd]

Cody,

I thought if I spelled it correctly it might draw the ire of the moderators.  You know what sticklers they are on topics diet or generic intellect.

Good that you are feeling well.

John